1972D Half Dollar Thin Stock?

Ok, as for the OP of the 50c piece...At what point can it be definitively determined that it is a "thin planchet" vs. it being "25 cent stock?

 

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Good question. I honestly don't know

 

I ask because I am trying to get several denominations on the wrong stock. For example, I would like a 25c piece both on true 10c stock and 50c stock. But I don't know if "thin" means it was the correct 25c stock but that stock got rolled thin, or if it was actually mistakenly cut from true dime stock. Some slabs say "rolled thin," others just give the weight and say "underweight planchet" and the weight matches what it would be if it were dime stock. Very frustrating. Personally, I dont care about a "rolled thin" 25c piece; I want dime stock!

 

Not my area of expertise but I would be interested to know the answer as well.

 

Prob not. "A Numismatic News reader from Mississippi submitted an interesting Kennedy half dollar find. While searching through circulated rolls he found a 1971-D struck on a planchet of quarter-dollar thickness or what is called a "Wrong Stock" error. It weighs 8.8 grams versus the normal 11.34 grams for a clad half."